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<?php
namespace Bitrix\Main\Engine\Response;
use Bitrix\Main\Text\StringHelper;
final class Converter
{
const TO_SNAKE = 0x00001;
const TO_CAMEL = 0x00002;
const TO_SNAKE_DIGIT = 0x00004;
const TO_UPPER = 0x00010;
const TO_LOWER = 0x00020;
const LC_FIRST = 0x00100;
const UC_FIRST = 0x00200;
const KEYS = 0x01000;
const VALUES = 0x02000;
const RECURSIVE = 0x04000;
const OUTPUT_JSON_FORMAT = self::KEYS | self::RECURSIVE | self::TO_CAMEL | self::LC_FIRST;
private $format;
public function __construct($format)
{
$this->setFormat($format);
}
public static function toJson()
{
return new self(self::OUTPUT_JSON_FORMAT);
}
public function process($data)
{
if (!$data)
{
return $data;
}
if (is_string($data))
{
return $this->formatString($data);
}
if (is_array($data))
{
return $this->formatArray($data);
}
return $data;
}
protected function formatArray(array $array)
{
$newData = [];
foreach ($array as $key => $item)
{
$itemConverted = false;
if ($this->format & self::VALUES)
{
if (($this->format & self::RECURSIVE) && is_array($item))
{
$item = $this->process($item);
}
elseif (is_string($item))
{
$item = $this->formatString($item);
}
$itemConverted = true;
}
if ($this->format & self::KEYS)
{
if (!is_int($key))
{
$key = $this->formatString($key);
}
if (($this->format & self::RECURSIVE) && is_array($item) && !$itemConverted)
{
$item = $this->formatArray($item);
}
}
$newData[$key] = $item;
}
return $newData;
}
protected function formatString($string)
{
if ($this->format & self::TO_SNAKE)
{
$string = StringHelper::camel2snake($string);
}
if ($this->format & self::TO_SNAKE_DIGIT)
{
$string = preg_replace('/(\d+)([A-Za-z])/', '$1_$2', $string);
$string = preg_replace('/([A-Za-z])(\d)/', '$1_$2', $string);
$string = preg_replace('/([^_])([A-Z])/', '$1_$2', $string);
$string = mb_strtolower($string);
}
if ($this->format & self::TO_CAMEL)
{
$string = StringHelper::snake2camel($string);
}
if ($this->format & self::TO_LOWER)
{
$string = mb_strtolower($string);
}
if ($this->format & self::TO_UPPER)
{
$string = mb_strtoupper($string);
}
if ($this->format & self::UC_FIRST)
{
$string = ucfirst($string);
}
if ($this->format & self::LC_FIRST)
{
$string = lcfirst($string);
}
return $string;
}
public function getFormat()
{
return $this->format;
}
public function setFormat($format)
{
$this->format = $format;
return $this;
}
}